Double-back gaming office chairs come with a verifiable medical recommendation from a German Physician Dr M. Brunig's 1988 breakthrough invention. Manned with a multi-functional mechanism, these chair is designed to stand the rigor of heavy office du...

Double-back gaming office chairs come with a verifiable medical recommendation from a German Physician Dr M. Brunig's 1988 breakthrough invention. Manned with a multi-functional mechanism, these chair is designed to stand the rigor of heavy office du...